The grown-up performance by the troupe, who are providing entertainment at this year's Crowehorwath BrightStars gala ball, highlights the progress the troupe has made over its past six years of operation.

The ball will be held on June 28, at the Don Centre in Devonport, featuring a five- course degustation menu, performances, a dance-band, auction, silent auction and a raffle for a $1000 travel voucher prize.

All proceeds support Down Syndrome Tasmania.

Troupe choreographer Alison Jarman said the dancers, who have Down Syndrome and are accompanied by a volunteer partner, have touched her heart with their achievements.

"Expect vibrant costumes, a rock number, a bit of Buble and a very grown-up event by the older BrightStars," she said.

"I can't wait to see the audience's reaction, their socks will be knocked off, they will be surprised, but I think it will also make them understand where these dancers have come from and to what level they are at now.

"This performance is like nothing they have ever done before."

This year's event will be the sixth BrightStars gala ball.

The gala ball raises funds that are used for Down Syndrome Tasmania's annual camp, education workshops, family social events and other costs.

Gala committee member Leanne Smith said they wrote to local service clubs asking them to donate the funds for a person with Down Syndrome and a partner to attend the event.

She said the support had been generous, with 14 couples sponsored to attend the event.

"This is their night to get dressed up and go out to a formal ball which is thrown in their honour," Mrs Smith said.

The local community has also shown support in terms of event sponsorship, with more than 20 sponsors this year, Mrs Smith said.

The BrightStars gala ball will be held on June 28, 6pm for a 6.30pm start, at the Don Centre on Don Road. Bookings are essential, call Debbie Kearns at Down Syndrome Tasmania on 0458240494. Tickets cost $150 and include a five-course degustation menu, wine and beer, and entertainment.